98119765561 has 2 divisors, whose sum is σ = 98119765562. Its totient is φ = 98119765560.

The previous prime is 98119765529. The next prime is 98119765573. The reversal of 98119765561 is 16556791189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81541658025 + 16578107536 = 285555^2 + 128756^2 .

It is a cyclic number.

It is not a de Polignac number, because 98119765561 - 2⁵ = 98119765529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98119765496 and 98119765505.

It is not a weakly prime, because it can be changed into another prime (98119765061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49059882780 + 49059882781.

It is an arithmetic number, because the mean of its divisors is an integer number (49059882781).

Almost surely, 2^98119765561 is an apocalyptic number.

It is an amenable number.

98119765561 is a deficient number, since it is larger than the sum of its proper divisors (1).

98119765561 is an equidigital number, since it uses as much as digits as its factorization.

98119765561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 58.

The spelling of 98119765561 in words is "ninety-eight billion, one hundred nineteen million, seven hundred sixty-five thousand, five hundred sixty-one".